respectively. Ozone (O3) levels correlated with wheezing, and cough correlated with indoor PM2.5 from
ambient sources. Evidence from a cross-sectional study investigating the prevalence of irritative symptoms and chronic respiratory
symptoms among 109 workers exposed to PM as a result of incense
burning in a temple in Taiwan, and 118 unexposed workers in a
control group, indicated that chronic cough was common in the exposure group